Zmiany chemicznych właściwości gleby w zależności od systemu nawożenia
Stanisław Sienkiewicz; Sławomir Krzebietke; Jadwiga Wierzbowska; Jerzy Czapla · 2004 · Agronomy Science
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract
The objective of the study was to determine modifications in the content of available nutrients, organic carbon, total nitrogen and mineral forms of nitrogen occurring under the effect of long-term mineral and mineral-organic fertilization. The experiments were carried out on two fields between 1998 and 2001. They covered the fourth rotation of a long-term field trial established in 1986. On grey-brown podzolic soil formed from loamy clay, the following crops were grown in rotation: sugar beet, spring barley, maize and spring wheat. The soil analyses carried out prior to the tests showed that
Abstract by Stanisław Sienkiewicz; Sławomir Krzebietke; Jadwiga Wierzbowska; Jerzy Czapla, Agronomy Science (2004) — licensed CC BY 4.0.
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Metadata source: DOAJ